Chevy Impala SS Forum - View Profile: cappy p

cappy p cappy p is offline

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  1. sparky494
    05-13-2016 11:07 AM - permalink
    I had a Throttle Body bored out to 52mm and over hauled, I then had a PCM programmed by PCMforLess to accommodate this upgrade. I installed both and the car doesn't seem to run/idle right. 1st off the TB seems to stick and will not return to a resting position when the car is running and get stuck slightly open and idle at about 1000rpm and if I am coasting and off the gas the rpms will range from 1300-800rpm., but when the car is off I cannot duplicate the TB being slightly open and I always returns to the resting/closed position every single time no matter how hard I try to make it stick! I must have something to do with the vacuum.

    I am baffled?!?! WTF

    Where do I start of how do I diagnose this?
    any thoughts or input would be great.

    Thanks in advanced!

  2. sparky494
    11-10-2015 06:27 PM - permalink
    I replaced that gasket with my original gasket from my original TB and things do seem better. Idle seems off a bit, but not consistently off. shifts are still weak, compared to the hypertech. I am also lookin to get in touch with some fellow members in the Milwaukee area.
    I appreciate u puttin up with me and I thank you for the input.
  3. thebigbadWOLF
    12-13-2012 11:10 AM - permalink
    whats upppppppp

  About Me

  • About cappy p
    Union, OR
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    96 BBB-ERE #71.
    95 DGGM-mostly stock


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  • Last Activity: Yesterday 09:49 PM
  • Join Date: 05-05-2006
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06:38 PM - ImpalaSSpeed96 quoted cappy p in post The Sway Bar brace from Pro-Touring works GREAT!!(lotsa pics)
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